Beining Intelligent Technology (Zhejiang) Co., Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 500000pcs per month |
| Delivery Time | 2-4 weeks |
| Packaging Details | plastic tub/middle box,carton,pallet |
| Model Numbers: | 678 Minature Deep Groove Ball Bearing |
| Bearing Seals | Open,ZZ or 2RS available |
| Interchange | FAG 678 , NTN W678 ,B678 |
| Clearance | Standard |
| Brand Name | CNBTZC or OEM |
| Model Number | 678 |
| Certification | IATF16949:2016 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 500000pcs per month |
| Delivery Time | 2-4 weeks | Packaging Details | plastic tub/middle box,carton,pallet |
| Model Numbers: | 678 Minature Deep Groove Ball Bearing | Bearing Seals | Open,ZZ or 2RS available |
| Interchange | FAG 678 , NTN W678 ,B678 | Clearance | Standard |
| Brand Name | CNBTZC or OEM | Model Number | 678 |
| Certification | IATF16949:2016 | Place of Origin | China |
617/8 678 Minature Deep Groove Ball Bearings 8mm X 12mm X 2.5mm Thin Section Robot Bearings
8mm Bore 678 617/8 Minature Deep Groove Ball Bearing 8 X12X2.5mm Single Row Open Type Rolling Radial Ball Bearing Thin Section Robot Bearing High Performance Bearing
The 678 miniature deep groove ball bearing, with dimensions of 7mm inner diameter × 11mm outer diameter × 3mm width, is renowned for its compact size, high-speed capability, and low noise characteristics.
Bearing Number |
Boundary Dimensions(mm) | Basic Load Rating(N) | Limiting Speed(rpm) | Reference(kg) Weight |
||||||||
| Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Grease | Oil | |||||
| d | D | B | B1 | r(min) | Cr | Cor | Non-contact | Wt ≈ | ||||
| 617/3 | ZZ | 3 | 6 | 2 | 2.5 | 0.1 | 242 | 94 | 60000 | 71000 | 0.00020 | |
| 617/4 | ZZ | 4 | 7 | 2 | 2.5 | 0.1 | 222 | 88 | 54000 | 63000 | 0.00028 | |
| 617/5 | ZZ | 5 | 8 | 2 | 2.5 | 0.1 | 217 | 91 | 49000 | 57000 | 0.00032 | |
| 617/6 | ZZ | 6 | 10 | 2.5 | 3 | 0.1 | 465 | 196 | 43000 | 51000 | 0.00065 | |
| 617/7 | ZZ | 7 | 11 | 2.5 | 3 | 0.1 | 555 | 269 | 40000 | 47000 | 0.00067 | |
| 617/8 | ZZ | 8 | 12 | 2.5 | 3.5 | 0.1 | 515 | 252 | 38000 | 45000 | 0.00075 | |
| 617/9 | ZZ | 9 | 14 | 3 | 4.5 | 0.1 | 920 | 465 | 36000 | 42000 | 0.00140 | |
678 Ball Bearings 8X12X2.5mm Specifications & Dimensions
| Universal | 678 |
| Type | Deep Groove Ball |
| Inner/Outer Ring/ Ball Material | Chrome Steel |
| Cage Material | Steel/Nylon |
| CageType | Punching |
| Precision | P0,P6 |
| Inner Dimension d(Ø)(mm) | 8 |
| Outer Dimension D(Ø)(mm) | 12 |
| Width B (or T)(mm) | 2.5 |
| Lubrication | Grease or oil |
| Load Direction | Radial |
| Specifications/Environment | Standard |
| Number of Raceway Ring Rows | Single Track |
| Size Standards | Metric Series |
The 678 miniature deep groove ball bearing is widely used across various specialized fields due to its compact size and high precision. Application areas include:
1. Office and Electronic Equipment
Personal Computers: Used in cooling fans and internal transmission components of desktops and laptops.
Printers/Copiers: Applied in paper transmission systems and precision mechanical structures.
Cameras/Air Conditioners: Provides stable support in optical components and compressor motors.
2. Industrial and Automation Fields
Automotive Components: Utilized in non-core load-bearing parts such as fan blades and door handles.
Automation Equipment: Includes robotic arms and conveyor belt systems that require high-precision miniature bearings.
Power Tools: Employed in the motor bearings of devices like drills and angle grinders, requiring wear resistance and low noise.
3. Household and Consumer Products
Vacuum Cleaners/Fishing Reels: Used in motor transmissions and rotating components for smooth operation.
Smart Home Appliances: Found in the miniature transmission systems of devices like robotic vacuum cleaners and smart locks.
4. Special Scenarios
5G Communication Base Stations: Applied in the heat dissipation modules and precision adjustment devices of base stations.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2013
Total Annual:
30000000-+
Employee Number:
200~+
Ecer Certification：
Verified Supplier
At Beining Intelligent Technology (Zhejiang) Co.,Ltd, we specialize in designing and manufacturing super precision bearings for CNC machine tool spindles,robots and motors with an annual capacity of 200 million units. Our blend of innovation and scalable production serves industries worldwide. Ke... At Beining Intelligent Technology (Zhejiang) Co.,Ltd, we specialize in designing and manufacturing super precision bearings for CNC machine tool spindles,robots and motors with an annual capacity of 200 million units. Our blend of innovation and scalable production serves industries worldwide. Ke...
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